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fixed camera viewport bug and implemented basic flow of rays

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This commit is contained in:
Benjamin Kyd
2023-10-16 14:30:39 +01:00
parent 8db675acf6
commit dc946e77f2
8 changed files with 249 additions and 215 deletions
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69
src/preview_renderer/renderer.cpp
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@@ -53,10 +53,43 @@ void preview_cleanup(PreviewRenderer* renderer)
{
}
void preview_set_viewport(PreviewRenderer* renderer, Viewport* viewport)
void preview_draw_ui(PreviewRenderer* renderer)
{
}
void preview_set_viewport(PreviewRenderer* renderer, Camera* camera)
{
auto viewport = camera_raster_get_viewport(camera);
renderer->Viewport = &viewport;
glBindFramebuffer(GL_FRAMEBUFFER, renderer->RenderTarget);
glBindTexture(GL_TEXTURE_2D, renderer->RenderTargetTexture);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGB,
renderer->Viewport->x,
renderer->Viewport->y,
0,
GL_RGB,
GL_UNSIGNED_BYTE,
NULL);
glBindTexture(GL_TEXTURE_2D, renderer->RenderTargetDepthTexture);
glTexImage2D(GL_TEXTURE_2D,
0,
GL_DEPTH24_STENCIL8,
renderer->Viewport->x,
renderer->Viewport->y,
0,
GL_DEPTH_COMPONENT,
GL_FLOAT,
NULL);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
GLuint preview_get_rendered_texture(PreviewRenderer* renderer)
{
glBindFramebuffer(GL_FRAMEBUFFER, renderer->RenderTarget);
@@ -65,48 +98,18 @@ GLuint preview_get_rendered_texture(PreviewRenderer* renderer)
void preview_draw(PreviewRenderer* renderer, scene::Scene* scene)
{
const glm::ivec2& viewport = graphics::raster_get_viewport(scene::scene_get_camera(scene));
glBindFramebuffer(GL_FRAMEBUFFER, renderer->RenderTarget);
glBindTexture(GL_TEXTURE_2D, renderer->RenderTargetTexture);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGB,
viewport.x,
viewport.y,
0,
GL_RGB,
GL_UNSIGNED_BYTE,
NULL);
glBindTexture(GL_TEXTURE_2D, renderer->RenderTargetDepthTexture);
glTexImage2D(GL_TEXTURE_2D,
0,
GL_DEPTH24_STENCIL8,
viewport.x,
viewport.y,
0,
GL_DEPTH_COMPONENT,
GL_FLOAT,
NULL);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
// clear
glBindFramebuffer(GL_FRAMEBUFFER, renderer->RenderTarget);
glClearColor(0.1, 0.1, 0.1, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
// draw
glBindFramebuffer(GL_FRAMEBUFFER, renderer->RenderTarget);
glViewport(0,
0,
renderer->Viewport.x,
renderer->Viewport.y);
renderer->Viewport->x,
renderer->Viewport->y);
glEnable(GL_DEPTH_TEST);