feat: initialize OpenGL

2026-04-10 06:14:07 +08:00 · 2026-03-05 17:01:01 +08:00
parent 83c271ec8f
commit 9fe1eaec24
21 changed files with 5866 additions and 0 deletions
--- a/src/shaders/vShader.glsl
+++ b/src/shaders/vShader.glsl
@@ -0,0 +1,63 @@
+#version 430
+
+layout (location = 0) in vec3 pos;
+layout (location = 1) in vec2 texCoord;
+out vec2 tc;
+
+
+mat4 buildRotateX(float rad);
+mat4 buildRotateY(float rad);
+mat4 buildRotateZ(float rad);
+mat4 buildTranslate(float x, float y, float z);
+
+uniform mat4 mv_matrix;
+uniform mat4 proj_matrix;
+out vec4 varyingColor;
+
+layout (binding = 0) uniform sampler2D samp;
+
+void main(void) {
+    gl_Position = proj_matrix * mv_matrix * vec4(pos, 1.0);
+    tc = texCoord;
+    varyingColor = vec4(pos, 1.0) * 0.5 + vec4(0.5, 0.5, 0.5, 0.5);
+}
+
+mat4 buildTranslate(float x, float y, float z) {
+    mat4 trans = mat4(
+        1.0, 0.0, 0.0, 0.0, 
+        0.0, 1.0, 0.0, 0.0,
+        0.0, 0.0, 1.0, 0.0,
+        x, y, z, 1.0
+    );
+    return trans;
+}
+
+mat4 buildRotateX(float rad) {
+    mat4 xrot = mat4(
+        1.0, 0.0, 0.0, 0.0,
+        0.0, cos(rad), -sin(rad), 0.0,
+        0.0, sin(rad), cos(rad), 0.0,
+        0.0, 0.0, 0.0, 1.0
+    );
+    return xrot;
+}
+
+mat4 buildRotateY(float rad) {
+    mat4 yrot = mat4(
+        cos(rad), 0.0, sin(rad), 0.0,
+        0.0, 1.0, 0.0, 0.0,
+        -sin(rad), 0.0, cos(rad), 0.0,
+        0.0, 0.0, 0.0, 1.0
+    );
+    return yrot;
+}
+
+mat4 buildRotateZ(float rad) {
+    mat4 zrot = mat4(
+        cos(rad), -sin(rad), 0.0, 0.0,
+        sin(rad), cos(rad), 0.0, 0.0,
+        0.0, 0.0,1.0 , 0.0,
+        0.0, 0.0, 0.0, 1.0
+    );
+    return zrot;
+}