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fix ratio

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klemek
2025-09-12 10:43:48 +02:00
parent 1c663b6a7c
commit 1575c27795
1 changed files with 3 additions and 4 deletions
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src/forge.c
+3 -4
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@@ -37,8 +37,8 @@ static const char *fragment_shader_text =
" vec2 uv0 = vUV.st;\n" " vec2 uv0 = vUV.st;\n"
" float ratio = iResolution.x / iResolution.y;\n" " float ratio = iResolution.x / iResolution.y;\n"
" vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);\n" " vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);\n"
" vec3 color = vec3(vUV, 0.0);\n" " vec3 color = vec3(vUV, sin(iTime * 0.5) * 0.5 + 0.5);\n"
" color *= 1 - step(abs(sin(iTime) * 0.5),length(uv1));\n" " color *= 1 - step(cos(iTime) * 0.5 + 0.5,length(uv1));\n"
" fragColor = vec4(color, 1.0);\n" " fragColor = vec4(color, 1.0);\n"
"}\n"; "}\n";
@@ -120,7 +120,6 @@ ShaderProgram init_program() {
void loop(GLFWwindow *window, ShaderProgram program) { void loop(GLFWwindow *window, ShaderProgram program) {
int width, height; int width, height;
glfwGetFramebufferSize(window, &width, &height); glfwGetFramebufferSize(window, &width, &height);
const float ratio = width / (float)height;
vec2 resolution = {(float)width, (float)height}; vec2 resolution = {(float)width, (float)height};
glViewport(0, 0, width, height); glViewport(0, 0, width, height);
@@ -128,7 +127,7 @@ void loop(GLFWwindow *window, ShaderProgram program) {
mat4x4 m, p, mvp; mat4x4 m, p, mvp;
mat4x4_identity(m); mat4x4_identity(m);
mat4x4_ortho(p, 0, ratio, 0.0f, 1.0f, 1.0f, 0.0f); mat4x4_ortho(p, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f);
mat4x4_mul(mvp, p, m); mat4x4_mul(mvp, p, m);
glUseProgram(program.program); glUseProgram(program.program);