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opengl example

This commit is contained in:
Vadim Lopatin 2015-12-22 14:48:23 +03:00
parent 7bdff965b2
commit e8f9422d59
2 changed files with 49 additions and 8 deletions
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37
examples/opengl/src/openglexample.d
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@ -251,6 +251,7 @@ static if (ENABLE_OPENGL) {
return;
}
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//glClear(/*GL_COLOR_BUFFER_BIT | */GL_DEPTH_BUFFER_BIT);
checkgl!glDisable(GL_CULL_FACE);
checkgl!glDisable(GL_DEPTH_TEST);
@ -258,14 +259,24 @@ static if (ENABLE_OPENGL) {
//import gl3n.linalg;
//glSupport.setPerspectiveProjection(windowRect, rc, 45.0f, 0.5f, 100.0f);
//mat4 projectionMatrix = glSupport.projectionMatrix; //mat4.perspective(rc.width, rc.height, 90.0f, 0.5f, 100.0f);
mat4 projectionMatrix = glSupport.projectionMatrix;
// ======== Projection Matrix ==================
mat4 projectionMatrix; // = glSupport.projectionMatrix;
projectionMatrix.setIdentity();
float aspectRatio = cast(float)rc.width / cast(float)rc.height;
projectionMatrix.setPerspective(45.0f, aspectRatio, 0.5f, 100.0f);
mat4 viewMatrix = 1.0f;
viewMatrix.lookAt(vec3(10, 0, 0), vec3(0, 0, 0), vec3(0, 1, 0));//translation(0.0f, 0.0f, 4.0f).rotatez(angle);
mat4 modelMatrix = mat4.identity;
projectionMatrix.setPerspective(45.0f, aspectRatio, 0.1f, 100.0f);
// ======== View Matrix ==================
mat4 viewMatrix;
viewMatrix.setIdentity();
viewMatrix.lookAt(vec3(2, 0, 0), vec3(0, 0, 0), vec3(0, 1, 0));//translation(0.0f, 0.0f, 4.0f).rotatez(angle);
// ======== Model Matrix ==================
mat4 modelMatrix;
modelMatrix.setIdentity();
modelMatrix.scale(0.3f);
//modelMatrix.translate(3, 0, 0);
mat4 m = projectionMatrix * viewMatrix * modelMatrix;
mat4 m = (projectionMatrix * viewMatrix) * modelMatrix;
//mat4 m = modelMatrix * viewMatrix * projectionMatrix;
//float[16] matrix;
@ -280,6 +291,12 @@ static if (ENABLE_OPENGL) {
Log.d("(-1,-1,-1) * matrix: ", (m * vec3(-1, -1, -1)).vec);
Log.d("(1,1,1) * matrix: ", (m * vec3(1, 1, 1)).vec);
Log.d("(0,3,0) * matrix: ", (m * vec3(0, 3, 0)).vec);
for (int i = 0; i < vertices.length - 2; i+=3) {
vec3 v = vec3(vertices[i], vertices[i + 1], vertices[i + 2]);
vec3 v_mul_m = (v * m);
vec3 m_mul_v = (m * v);
Log.d("pvmmatrix * ", v.vec, " = ", v_mul_m.vec);
}
//Log.d("(1,1,1) * matrix: ", m * vec4(1, 1, 1, 1));
//Log.d("(0,1,0) * matrix: ", m * vec4(0, 1, 0, 1));
//Log.d("(1,0,0) * matrix: ", m * vec4(1, 0, 0, 1));
@ -309,14 +326,17 @@ static if (ENABLE_OPENGL) {
class MyProgram : GLProgram {
@property override string vertexSource() {
return q{
uniform mat4 matrix;
in vec4 vertex;
in vec4 colAttr;
in vec4 texCoord;
out vec4 col;
out vec4 texc;
uniform mat4 matrix;
void main(void)
{
//gl_Position = vertex * matrix;
gl_Position = matrix * vertex;
col = colAttr;
texc = texCoord;
@ -332,7 +352,8 @@ static if (ENABLE_OPENGL) {
out vec4 outColor;
void main(void)
{
outColor = texture(tex, texc.st) * col;
outColor = col; //texture(tex, texc.st); // * col;
//outColor = col; //texture(tex, texc.st) * col;
}
};
}

20
src/dlangui/core/math3d.d
View File

@ -1130,6 +1130,26 @@ struct mat4 {
return this;
}
ref mat4 scale(float v) {
m[0*4 + 0] *= v;
m[0*4 + 1] *= v;
m[0*4 + 2] *= v;
m[0*4 + 3] *= v;
m[1*4 + 0] *= v;
m[1*4 + 1] *= v;
m[1*4 + 2] *= v;
m[1*4 + 3] *= v;
m[2*4 + 0] *= v;
m[2*4 + 1] *= v;
m[2*4 + 2] *= v;
m[2*4 + 3] *= v;
//m[3*4 + 0] *= v;
//m[3*4 + 1] *= v;
//m[3*4 + 2] *= v;
//m[3*4 + 3] *= v;
return this;
}
ref mat4 scale(const vec3 v) {
m[0*4 + 0] *= v.x;
m[0*4 + 1] *= v.x;