Java Code Examples for org.lwjgl.opengl.GL20#glVertexAttribPointer()
The following examples show how to use
org.lwjgl.opengl.GL20#glVertexAttribPointer() .
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Example 1
| Source File: GL33Helper.java From ldparteditor with MIT License | 7 votes |
|
public static void drawLinesRGB_GeneralSlow(float[] vertices) {
int VBO_general = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_general);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawArrays(GL11.GL_LINES, 0, vertices.length);
GL15.glDeleteBuffers(VBO_general);
}
Example 2
| Source File: GL33HelperPrimitives.java From ldparteditor with MIT License | 6 votes |
|
public static void drawTrianglesIndexedRGB_Triangle(float[] vertices, int[] indices) {
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_triangle);
GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, 0, vertices);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO_triangle);
GL15.glBufferSubData(GL15.GL_ELEMENT_ARRAY_BUFFER, 0, indices);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawElements(GL11.GL_TRIANGLES, 6, GL11.GL_UNSIGNED_INT, 0);
}
Example 3
| Source File: GL33Helper.java From ldparteditor with MIT License | 6 votes |
|
public static void drawTriangleVAO_GeneralSlow(float[] vertices) {
int VAO_general = GL30.glGenVertexArrays();
int VBO_general = GL15.glGenBuffers();
GL30.glBindVertexArray(VAO_general);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_general);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, 12, 0);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, 3);
GL30.glBindVertexArray(0);
GL30.glDeleteVertexArrays(VAO_general);
GL15.glDeleteBuffers(VBO_general);
}
Example 4
| Source File: GL33Helper.java From ldparteditor with MIT License | 6 votes |
|
public static void drawTrianglesIndexedRGB_GeneralSlow(float[] vertices, int[] indices) {
int VBO_general = GL15.glGenBuffers();
int EBO_general = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_general);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STREAM_DRAW);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO_general);
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, indices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawElements(GL11.GL_TRIANGLES, indices.length, GL11.GL_UNSIGNED_INT, 0);
GL15.glDeleteBuffers(VBO_general);
GL15.glDeleteBuffers(EBO_general);
}
Example 5
| Source File: GL33Helper.java From ldparteditor with MIT License | 6 votes |
|
public void drawTrianglesIndexedRGB_General(float[] vertices, int[] indices) {
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_general);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STREAM_DRAW);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO_general);
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, indices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawElements(GL11.GL_TRIANGLES, indices.length, GL11.GL_UNSIGNED_INT, 0);
}
Example 6
| Source File: GL33HelperPrimitives.java From ldparteditor with MIT License | 6 votes |
|
public static void drawTrianglesIndexedRGB_Quad(float[] vertices, int[] indices) {
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_quad);
GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, 0 , vertices);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO_quad);
GL15.glBufferSubData(GL15.GL_ELEMENT_ARRAY_BUFFER, 0, indices);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawElements(GL11.GL_TRIANGLES, 12, GL11.GL_UNSIGNED_INT, 0);
}
Example 7
| Source File: CurveRenderState.java From opsu with GNU General Public License v3.0 | 5 votes |
|
/**
* Do the actual drawing of the curve into the currently bound framebuffer.
* @param color the color of the curve
* @param borderColor the curve border color
*/
private void renderCurve(Color color, Color borderColor, int to) {
staticState.initGradient();
RenderState state = saveRenderState();
staticState.initShaderProgram();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboID);
GL20.glUseProgram(staticState.program);
GL20.glEnableVertexAttribArray(staticState.attribLoc);
GL20.glEnableVertexAttribArray(staticState.texCoordLoc);
GL20.glUniform1i(staticState.texLoc, 0);
GL20.glUniform4f(staticState.colLoc, color.r, color.g, color.b, color.a);
GL20.glUniform4f(staticState.colBorderLoc, borderColor.r, borderColor.g, borderColor.b, borderColor.a);
float lastSegmentX = to == 0 ? curve[1].x - curve[0].x : curve[to].x - curve[to-1].x;
float lastSegmentY = to == 0 ? curve[1].y - curve[0].y : curve[to].y - curve[to-1].y;
float lastSegmentInvLen = 1.f/(float)Math.hypot(lastSegmentX, lastSegmentY);
GL20.glUniform4f(staticState.endPointLoc, curve[to].x, curve[to].y, lastSegmentX * lastSegmentInvLen, lastSegmentY * lastSegmentInvLen);
//stride is 6*4 for the floats (4 bytes) (u,v)(x,y,z,w)
//2*4 is for skipping the first 2 floats (u,v)
GL20.glVertexAttribPointer(staticState.attribLoc, 4, GL11.GL_FLOAT, false, 6 * 4, 2 * 4);
GL20.glVertexAttribPointer(staticState.texCoordLoc, 2, GL11.GL_FLOAT, false, 6 * 4, 0);
GL11.glColorMask(false,false,false,false);
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, pointIndices[to]);
GL11.glColorMask(true,true,true,true);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDepthFunc(GL11.GL_EQUAL);
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, pointIndices[to]);
GL11.glDepthFunc(GL11.GL_LESS);
GL11.glFlush();
GL20.glDisableVertexAttribArray(staticState.texCoordLoc);
GL20.glDisableVertexAttribArray(staticState.attribLoc);
restoreRenderState(state);
}
Example 8
| Source File: GL33HelperPrimitives.java From ldparteditor with MIT License | 5 votes |
|
public static void drawLinesRGB_Line(float[] vertices) {
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_line);
GL15.glBufferSubData(GL15.GL_ARRAY_BUFFER, 0, vertices);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 0);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, RGB_STRIDE, 12); // 3 * 4
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawArrays(GL11.GL_LINES, 0, 2);
}
Example 9
| Source File: LWJGL20DrawContext.java From settlers-remake with MIT License | 5 votes |
|
@Override
public void drawTrianglesWithTextureColored(TextureHandle textureid, GeometryHandle shapeHandle, GeometryHandle colorHandle, int offset, int lines, int width, int stride, float x, float y) {
bindTexture(textureid);
if(backgroundVAO == -1) {
if(glcaps.GL_ARB_vertex_array_object) {
backgroundVAO = ARBVertexArrayObject.glGenVertexArrays();
bindFormat(backgroundVAO);
}
GL20.glEnableVertexAttribArray(0);
GL20.glEnableVertexAttribArray(1);
GL20.glEnableVertexAttribArray(2);
bindGeometry(shapeHandle);
GL20.glVertexAttribPointer(0, 3, GL11.GL_FLOAT, false, 5 * 4, 0);
GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, 5 * 4, 3 * 4);
bindGeometry(colorHandle);
GL20.glVertexAttribPointer(2, 1, GL11.GL_FLOAT, false, 0, 0);
setObjectLabel(GL11.GL_VERTEX_ARRAY, backgroundVAO, "background-vao");
setObjectLabel(KHRDebug.GL_BUFFER, shapeHandle.getInternalId(), "background-shape");
setObjectLabel(KHRDebug.GL_BUFFER, colorHandle.getInternalId(), "background-color");
}
int starti = offset < 0 ? (int)Math.ceil(-offset/(float)stride) : 0;
useProgram(prog_background);
GL20.glUniform2f(prog_background.ufs[TRANS], x, y);
bindFormat(backgroundVAO);
for (int i = starti; i != lines; i++) {
GL11.glDrawArrays(GL11.GL_TRIANGLES, (offset + stride * i) * 3, width * 3);
}
}
Example 10
| Source File: LegacyCurveRenderState.java From opsu with GNU General Public License v3.0 | 5 votes |
|
/**
* Do the actual drawing of the curve into the currently bound framebuffer.
* @param color the color of the curve
* @param borderColor the curve border color
*/
private void renderCurve(Color color, Color borderColor, int from, int to, boolean clearFirst) {
staticState.initGradient();
RenderState state = saveRenderState();
staticState.initShaderProgram();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, fbo.getVbo());
GL20.glUseProgram(staticState.program);
GL20.glEnableVertexAttribArray(staticState.attribLoc);
GL20.glEnableVertexAttribArray(staticState.texCoordLoc);
GL20.glUniform1i(staticState.texLoc, 0);
GL20.glUniform3f(staticState.colLoc, color.r, color.g, color.b);
GL20.glUniform4f(staticState.colBorderLoc, borderColor.r, borderColor.g, borderColor.b, borderColor.a);
//stride is 6*4 for the floats (4 bytes) (u,v)(x,y,z,w)
//2*4 is for skipping the first 2 floats (u,v)
GL20.glVertexAttribPointer(staticState.attribLoc, 4, GL11.GL_FLOAT, false, 6 * 4, 2 * 4);
GL20.glVertexAttribPointer(staticState.texCoordLoc, 2, GL11.GL_FLOAT, false, 6 * 4, 0);
if (clearFirst)
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
if (pointsToRender == null) {
for (int i = from * 2; i < to * 2 - 1; ++i) {
if (spliceFrom <= i && i <= spliceTo)
continue;
GL11.glDrawArrays(GL11.GL_TRIANGLE_FAN, i * (NewCurveStyleState.DIVIDES + 2), NewCurveStyleState.DIVIDES + 2);
}
} else {
Iterator<Integer> iter = pointsToRender.iterator();
while (iter.hasNext()) {
for (int i = iter.next() * 2, end = iter.next() * 2 - 1; i < end; ++i)
GL11.glDrawArrays(GL11.GL_TRIANGLE_FAN, i * (NewCurveStyleState.DIVIDES + 2), NewCurveStyleState.DIVIDES + 2);
}
}
GL11.glFlush();
GL20.glDisableVertexAttribArray(staticState.texCoordLoc);
GL20.glDisableVertexAttribArray(staticState.attribLoc);
restoreRenderState(state);
}
Example 11
| Source File: LWJGL20DrawContext.java From settlers-remake with MIT License | 5 votes |
|
@Override
protected void specifyFormat(EGeometryFormatType format) {
GL20.glEnableVertexAttribArray(0);
if (format.getTexCoordPos() == -1) {
GL20.glVertexAttribPointer(0, 2, GL11.GL_FLOAT, false, 0, 0);
} else {
GL20.glEnableVertexAttribArray(1);
int stride = format.getBytesPerVertexSize();
GL20.glVertexAttribPointer(0, 2, GL11.GL_FLOAT, false, stride, 0);
GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, stride, format.getTexCoordPos());
}
}
Example 12
| Source File: GL33Helper.java From ldparteditor with MIT License | 5 votes |
|
public static void drawTriangle_GeneralSlow(float[] vertices) {
int VBO_general = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO_general);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, 12, 0);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, 3);
GL15.glDeleteBuffers(VBO_general);
}
Example 13
| Source File: Vao.java From OpenGL-Animation with The Unlicense | 5 votes |
|
public void createAttribute(int attribute, float[] data, int attrSize){
Vbo dataVbo = Vbo.create(GL15.GL_ARRAY_BUFFER);
dataVbo.bind();
dataVbo.storeData(data);
GL20.glVertexAttribPointer(attribute, attrSize, GL11.GL_FLOAT, false, attrSize * BYTES_PER_FLOAT, 0);
dataVbo.unbind();
dataVbos.add(dataVbo);
}
Example 14
| Source File: vboWithRGBA.java From ldparteditor with MIT License | 4 votes |
|
@Override
public void init() {
Matrix4f.setIdentity(viewport);
shaderProgram = new GLShader("primitive.vert", "primitive.frag"); //$NON-NLS-1$ //$NON-NLS-2$
shaderProgram.use();
GL11.glClearDepth(1.0f);
GL11.glClearColor(View.primitive_background_Colour_r[0], View.primitive_background_Colour_g[0], View.primitive_background_Colour_b[0], 1.0f);
// Set up vertex data (and buffer(s)) and attribute pointers
float[] vertices = new float[]{
0.5f, 0.5f, 0.0f, // Top Right
0.0f, 0.0f, 1.0f, // Normal
1.0f, 0.0f, 0.0f, 1.0f, // Colour
0.5f, -0.5f, 0.0f, // Bottom Right
0.0f, 0.0f, 1.0f, // Normal
0.0f, 1.0f, 0.0f, 1.0f, // Colour
-0.5f, -0.5f, 0.0f, // Bottom Left
0.0f, 0.0f, 1.0f, // Normal
0.0f, 0.0f, 1.0f, 1.0f, // Colour
};
VAO = GL30.glGenVertexArrays();
VBO = GL15.glGenBuffers();
// Bind the Vertex Array Object first, then bind and set vertex buffer(s) and attribute pointer(s).
GL30.glBindVertexArray(VAO);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STATIC_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, (3 + 3 + 4) * 4, 0);
GL20.glEnableVertexAttribArray(NORMAL_SHADER_LOCATION);
GL20.glVertexAttribPointer(NORMAL_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, (3 + 3 + 4) * 4, 3 * 4);
GL20.glEnableVertexAttribArray(COLOUR_SHADER_LOCATION);
GL20.glVertexAttribPointer(COLOUR_SHADER_LOCATION, 4, GL11.GL_FLOAT, false, (3 + 3 + 4) * 4, (3 + 3) * 4);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0); // Note that this is allowed, the call to glVertexAttribPointer registered VBO as the currently bound vertex buffer object so afterwards we can safely unbind
GL30.glBindVertexArray(0); // Unbind VAO (it's always a good thing to unbind any buffer/array to prevent strange bugs), remember: do NOT unbind the EBO, keep it bound to this VAO
}
Example 15
| Source File: vboWithIndices.java From ldparteditor with MIT License | 4 votes |
|
@Override
public void init() {
Matrix4f.setIdentity(viewport);
shaderProgram = new GLShader("primitive.vert", "primitive.frag"); //$NON-NLS-1$ //$NON-NLS-2$
shaderProgram.use();
GL11.glClearDepth(1.0f);
GL11.glClearColor(View.primitive_background_Colour_r[0], View.primitive_background_Colour_g[0], View.primitive_background_Colour_b[0], 1.0f);
new Thread(new Runnable() {
@Override
public void run() {
while (isRendering.get()) {
final float zoom = cp.getZoom();
final Matrix4f viewport_translation = cp.getTranslation();
final float STEP = 22f * zoom * View.PIXEL_PER_LDU;
cp.setRotationWidth(STEP);
Matrix4f viewport_transform = new Matrix4f();
Matrix4f.setIdentity(viewport_transform);
Matrix4f.scale(new Vector3f(zoom, zoom, zoom), viewport_transform, viewport_transform);
Matrix4f.mul(viewport_transform, viewport_translation, viewport_transform);
cp.setViewport(viewport_transform);
viewport = viewport_transform;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
// Set up vertex data (and buffer(s)) and attribute pointers
float[] vertices = new float[]{
0.5f, 0.5f, 0.0f, // Top Right
0.5f, -0.5f, 0.0f, // Bottom Right
-0.5f, -0.5f, 0.0f, // Bottom Left
-0.5f, 0.5f, 0.0f // Top Left
};
int[] indices = new int[]{ // Note that we start from 0!
0, 1, 3, // First Triangle
1, 2, 3 // Second Triangle
};
VAO = GL30.glGenVertexArrays();
VBO = GL15.glGenBuffers();
EBO = GL15.glGenBuffers();
// Bind the Vertex Array Object first, then bind and set vertex buffer(s) and attribute pointer(s).
GL30.glBindVertexArray(VAO);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, vertices, GL15.GL_STATIC_DRAW);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO);
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, indices, GL15.GL_STATIC_DRAW);
GL20.glEnableVertexAttribArray(POSITION_SHADER_LOCATION);
GL20.glVertexAttribPointer(POSITION_SHADER_LOCATION, 3, GL11.GL_FLOAT, false, 3 * 4, 0);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0); // Note that this is allowed, the call to glVertexAttribPointer registered VBO as the currently bound vertex buffer object so afterwards we can safely unbind
GL30.glBindVertexArray(0); // Unbind VAO (it's always a good thing to unbind any buffer/array to prevent strange bugs), remember: do NOT unbind the EBO, keep it bound to this VAO
}
Example 16
| Source File: Attribute.java From LowPolyWater with The Unlicense | 4 votes |
|
protected void link(int offset, int stride) {
GL20.glVertexAttribPointer(attributeNumber, componentCount, dataType, normalized, stride, offset);
}
Example 17
| Source File: OpenGL3_TheQuadTextured.java From ldparteditor with MIT License | 4 votes |
|
private void setupQuad() {
// We'll define our quad using 4 vertices of the custom 'TexturedVertex' class
TexturedVertex v0 = new TexturedVertex();
v0.setXYZ(-0.5f, 0.5f, 0); v0.setRGB(1, 0, 0); v0.setST(0, 0);
TexturedVertex v1 = new TexturedVertex();
v1.setXYZ(-0.5f, -0.5f, 0); v1.setRGB(0, 1, 0); v1.setST(0, 1);
TexturedVertex v2 = new TexturedVertex();
v2.setXYZ(0.5f, -0.5f, 0); v2.setRGB(0, 0, 1); v2.setST(1, 1);
TexturedVertex v3 = new TexturedVertex();
v3.setXYZ(0.5f, 0.5f, 0); v3.setRGB(1, 1, 1); v3.setST(1, 0);
TexturedVertex[] vertices = new TexturedVertex[] {v0, v1, v2, v3};
// Put each 'Vertex' in one FloatBuffer
FloatBuffer verticesBuffer = BufferUtils.createFloatBuffer(vertices.length *
TexturedVertex.elementCount);
for (int i = 0; i < vertices.length; i++) {
// Add position, color and texture floats to the buffer
verticesBuffer.put(vertices[i].getElements());
}
verticesBuffer.flip();
// OpenGL expects to draw vertices in counter clockwise order by default
byte[] indices = {
0, 1, 2,
2, 3, 0
};
indicesCount = indices.length;
ByteBuffer indicesBuffer = BufferUtils.createByteBuffer(indicesCount);
indicesBuffer.put(indices);
indicesBuffer.flip();
// Create a new Vertex Array Object in memory and select it (bind)
vaoId = GL30.glGenVertexArrays();
GL30.glBindVertexArray(vaoId);
// Create a new Vertex Buffer Object in memory and select it (bind)
vboId = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vboId);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, verticesBuffer, GL15.GL_STATIC_DRAW);
// Put the position coordinates in attribute list 0
GL20.glVertexAttribPointer(0, TexturedVertex.positionElementCount, GL11.GL_FLOAT,
false, TexturedVertex.stride, TexturedVertex.positionByteOffset);
// Put the color components in attribute list 1
GL20.glVertexAttribPointer(1, TexturedVertex.colorElementCount, GL11.GL_FLOAT,
false, TexturedVertex.stride, TexturedVertex.colorByteOffset);
// Put the texture coordinates in attribute list 2
GL20.glVertexAttribPointer(2, TexturedVertex.textureElementCount, GL11.GL_FLOAT,
false, TexturedVertex.stride, TexturedVertex.textureByteOffset);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
// Deselect (bind to 0) the VAO
GL30.glBindVertexArray(0);
// Create a new VBO for the indices and select it (bind) - INDICES
vboiId = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, vboiId);
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, indicesBuffer, GL15.GL_STATIC_DRAW);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, 0);
this.exitOnGLError("setupQuad");
}
Example 18
| Source File: FastBlockModelRenderer.java From Valkyrien-Skies with Apache License 2.0 | 4 votes |
|
public static void renderVertexBuffer(VertexBuffer vertexBuffer) {
// Check if optifine shaders are currently loaded.
final boolean areOptifineShadersEnabled = GibsModelRegistry.isOptifineShadersEnabled();
GlStateManager.pushMatrix();
GlStateManager.resetColor();
GlStateManager.glEnableClientState(GL11.GL_VERTEX_ARRAY);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
GlStateManager.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.lightmapTexUnit);
GlStateManager.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
GlStateManager.glEnableClientState(GL11.GL_COLOR_ARRAY);
// Extra OpenGL states that must be enabled when shaders are enabled.
if (areOptifineShadersEnabled) {
GL11.glEnableClientState(32885);
GL20.glEnableVertexAttribArray(11);
GL20.glEnableVertexAttribArray(12);
GL20.glEnableVertexAttribArray(10);
}
GlStateManager.pushMatrix();
vertexBuffer.bindBuffer();
// Even more OpenGL states that must be enabled when shaders are enabled.
if (areOptifineShadersEnabled) {
int vertexSizeI = 14;
GL11.glVertexPointer(3, 5126, 56, 0L);
GL11.glColorPointer(4, 5121, 56, 12L);
GL11.glTexCoordPointer(2, 5126, 56, 16L);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.lightmapTexUnit);
GL11.glTexCoordPointer(2, 5122, 56, 24L);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
GL11.glNormalPointer(5120, 56, 28L);
GL20.glVertexAttribPointer(11, 2, 5126, false, 56, 32L);
GL20.glVertexAttribPointer(12, 4, 5122, false, 56, 40L);
GL20.glVertexAttribPointer(10, 3, 5122, false, 56, 48L);
} else {
GlStateManager.glVertexPointer(3, 5126, 28, 0);
GlStateManager.glColorPointer(4, 5121, 28, 12);
GlStateManager.glTexCoordPointer(2, 5126, 28, 16);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.lightmapTexUnit);
GlStateManager.glTexCoordPointer(2, 5122, 28, 24);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
}
vertexBuffer.drawArrays(7);
GlStateManager.popMatrix();
vertexBuffer.unbindBuffer();
GlStateManager.resetColor();
for (VertexFormatElement vertexformatelement : DefaultVertexFormats.BLOCK.getElements()) {
VertexFormatElement.EnumUsage vertexformatelement$enumusage = vertexformatelement
.getUsage();
int i = vertexformatelement.getIndex();
switch (vertexformatelement$enumusage) {
case POSITION:
GlStateManager.glDisableClientState(32884);
break;
case UV:
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit + i);
GlStateManager.glDisableClientState(32888);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
break;
case COLOR:
GlStateManager.glDisableClientState(32886);
GlStateManager.resetColor();
}
}
OpenGlHelper.glBindBuffer(OpenGlHelper.GL_ARRAY_BUFFER, 0);
// Finally disable some of those extra OpenGL states that were be enabled due to shaders.
if (areOptifineShadersEnabled) {
GL11.glDisableClientState(32885);
GL20.glDisableVertexAttribArray(11);
GL20.glDisableVertexAttribArray(12);
GL20.glDisableVertexAttribArray(10);
}
GlStateManager.resetColor();
GlStateManager.popMatrix();
}
Example 19
| Source File: ShaderHelper.java From OpenModsLib with MIT License | 4 votes |
|
@Override
public void glVertexAttribPointer(int index, int size, int type, boolean normalized, int stride, long offset) {
GL20.glVertexAttribPointer(index, size, type, normalized, stride, offset);
}
Example 20
| Source File: GearGL33.java From ldparteditor with MIT License | 3 votes |
|
public void draw(GLMatrixStack stack, GLShader shader, float x, float y, float z, float r, float g, float b) {
final GLShader backup = stack.getShader();
stack.setShader(shader);
shader.use();
stack.glPushMatrix();
stack.glLoadIdentity();
stack.glTranslatef(x, y, z);
final int colour = shader.getUniformLocation("color"); //$NON-NLS-1$
GL20.glUniform3f(colour, r, g, b);
final int VBO = GL15.glGenBuffers();
final int EBO = GL15.glGenBuffers();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBO);
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, bvertices, GL15.GL_STREAM_DRAW);
GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, EBO);
GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, bindices, GL15.GL_STREAM_DRAW);
GL20.glEnableVertexAttribArray(0);
GL20.glVertexAttribPointer(0, 3, GL11.GL_FLOAT, false, 12, 0);
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
GL11.glDrawElements(GL11.GL_TRIANGLES, bindices.capacity(), GL11.GL_UNSIGNED_INT, 0);
GL15.glDeleteBuffers(VBO);
GL15.glDeleteBuffers(EBO);
stack.setShader(backup);
backup.use();
stack.glPopMatrix();
}
