//This function, as its name implies, uses the passed in GL widget
void ShaderProgram::draw(GLWidget277 &f, Drawable &d)
{
prog.bind();
//Send the Drawable's color to the shader
if(unifColor != -1){
prog.setUniformValue(unifColor, la::to_qvec(d.getColor()));
}
// Each of the following blocks checks that:
// * This shader has this attribute, and
// * This Drawable has a vertex buffer for this attribute.
// If so, it binds the appropriate buffers to each attribute.
if (attrPos != -1 && d.bindPos()) {
prog.enableAttributeArray(attrPos);
f.glVertexAttribPointer(attrPos, 4, GL_FLOAT, false, 0, NULL);
}
if (attrNor != -1 && d.bindNor()) {
prog.enableAttributeArray(attrNor);
f.glVertexAttribPointer(attrNor, 4, GL_FLOAT, false, 0, NULL);
}
// Bind the index buffer and then draw shapes from it.
// This invokes the shader program, which accesses the vertex buffers.
d.bindIdx();
f.glDrawElements(d.drawMode(), d.elemCount(), GL_UNSIGNED_INT, 0);
if (attrPos != -1) prog.disableAttributeArray(attrPos);
if (attrNor != -1) prog.disableAttributeArray(attrNor);
f.printGLErrorLog();
}
// This function, as its name implies, uses the passed in GL widget
void ShaderProgram::draw(GLWidget277 &f, Drawable &d)
{
prog.bind();
// Each of the following blocks checks that:
// * This shader has this attribute, and
// * This Drawable has a vertex buffer for this attribute.
// If so, it binds the appropriate buffers to each attribute.
if (attrPos != -1 && d.bindPos()) {
prog.enableAttributeArray(attrPos);
f.glVertexAttribPointer(attrPos, 3, GL_FLOAT, false, 0, NULL);
}
if (attrNor != -1 && d.bindNor()) {
prog.enableAttributeArray(attrNor);
f.glVertexAttribPointer(attrNor, 3, GL_FLOAT, false, 0, NULL);
}
if (attrCol != -1 && d.bindCol()) {
prog.enableAttributeArray(attrCol);
f.glVertexAttribPointer(attrCol, 3, GL_FLOAT, false, 0, NULL);
}
//ADDED UV STUFF
if (attrUV != -1 && d.bindUV()) {
prog.enableAttributeArray(attrUV);
f.glVertexAttribPointer(attrUV, 4, GL_FLOAT, false, 0, NULL);
}
// Bind the index buffer and then draw shapes from it.
// This invokes the shader program, which accesses the vertex buffers.
d.bindIdx();
if(textSampler != nullptr)
{
textSampler->bind();
}
f.glDrawElements(d.drawMode(), d.elemCount(), GL_UNSIGNED_INT, 0);
if (attrPos != -1) prog.disableAttributeArray(attrPos);
if (attrNor != -1) prog.disableAttributeArray(attrNor);
if (attrCol!= -1) prog.disableAttributeArray(attrCol);
if (attrUV != -1) prog.disableAttributeArray(attrUV);
f.printGLErrorLog();
}
