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fov

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This commit is contained in:
CatWindow 2026-08-17 01:06:07 +03:00
parent 790d9137b3
commit ec8427770a
3 changed files with 32 additions and 18 deletions
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19
binding-mri/graphics-binding.cpp
View file

@ -224,7 +224,7 @@ DEF_GRA_PROP_B(Frameskip)
_rb_define_module_function(module, prop_name_s "=", graphics##Set##PropName); \
}
static VALUE graphicsWindowMoved(VALUE self){
static VALUE graphicsWindowMoved(VALUE){
RUBY_CONNECTION
conn->connection = shState->windowSignals.moved.Connect([conn](int x, int y){
shState->rubyDispatcher().invoke([conn, x, y]{
@ -239,7 +239,7 @@ static VALUE graphicsWindowMoved(VALUE self){
return TypedData_Wrap_Struct(rb_cRubyConnection, &rubyConnection_type, conn);
}
static VALUE graphicsWindowResized(VALUE self){
static VALUE graphicsWindowResized(VALUE){
RUBY_CONNECTION
conn->connection = shState->windowSignals.resized.Connect([conn](int w, int h){
shState->rubyDispatcher().invoke([conn, w, h]{
@ -254,7 +254,7 @@ static VALUE graphicsWindowResized(VALUE self){
return TypedData_Wrap_Struct(rb_cRubyConnection, &rubyConnection_type, conn);
}
static VALUE graphicsViewportResized(VALUE self){
static VALUE graphicsViewportResized(VALUE){
RUBY_CONNECTION
conn->connection = shState->graphicsSignals.resized.Connect([conn](int w, int h){
//shState->rubyDispatcher().invoke([conn, w, h]{
@ -269,6 +269,15 @@ static VALUE graphicsViewportResized(VALUE self){
return TypedData_Wrap_Struct(rb_cRubyConnection, &rubyConnection_type, conn);
}
static VALUE graphicsGetFOV(VALUE) {
return DBL2NUM(shState->graphics().globalFov);
}
static VALUE graphicsSetFOV(VALUE, VALUE fov) {
shState->graphics().globalFov = NUM2DBL(fov);
return Qnil;
}
void graphicsBindingInit(){
VALUE module = rb_define_module("Graphics");
@ -278,6 +287,10 @@ void graphicsBindingInit(){
rb_define_module_function(module, "window_resized", RUBY_METHOD_FUNC(graphicsWindowResized), 0);
rb_define_module_function(module, "viewport_resized", RUBY_METHOD_FUNC(graphicsViewportResized), 0);
rb_define_module_function(module, "fov", RUBY_METHOD_FUNC(graphicsGetFOV), 0);
rb_define_module_function(module, "fov=", RUBY_METHOD_FUNC(graphicsSetFOV), 1);
// Functions
_rb_define_module_function(module, "x", graphicsPosX);
_rb_define_module_function(module, "y", graphicsPosY);

2
src/graphics.h
View file

@ -66,6 +66,8 @@ public:
DECL_ATTR( Smooth, bool )
DECL_ATTR( Frameskip, bool )
float globalFov = 70;
/* <internal> */
Scene *getScreen() const;
/* Repaint screen with static image until exitCond

17
src/shader.cpp
View file

@ -243,23 +243,22 @@ void ShaderBase::applyPerspectiveProj()
const float width = (float)vp.w;
const float height = (float)vp.h;
const float cameraDistance = 1000.0f;
const float camDist = (height * 0.5f) / SDL_tan(shState->graphics().globalFov * PI / 360.0f);
const float nearPlane = 1.0f;
const float nearPlane = 0.01f;
const float farPlane = 10000.0f;
const float sx = 2.0f * cameraDistance / width;
const float sy = 2.0f * cameraDistance / height;
const float sx = 2.0f * camDist / width;
const float sy = 2.0f * camDist / height;
const float A = -(farPlane + nearPlane) / (farPlane - nearPlane);
const float B = -(2.0f * farPlane * nearPlane) / (farPlane - nearPlane);
const float A = (farPlane + nearPlane) / (farPlane - nearPlane);
const float B = (2.0f * farPlane * nearPlane) / (farPlane - nearPlane);
GLfloat mat[16] = {
sx, 0, 0, 0,
0, sy, 0, 0,
0, 0, A, -1,
-cameraDistance, -cameraDistance, B, cameraDistance
0, 0, -A, -1,
-camDist, -camDist, A * camDist - B, camDist
};
gl.UniformMatrix4fv(projMat.u_mat, 1, GL_FALSE, mat);