shockwave.c File Reference

#include "shockwave.h"
#include "gl_common.h"
#include "log.h"
#include "shader.h"
#include "utils.h"
#include <cglm/vec3.h>
#include <math.h>

Include dependency graph for shockwave.c:

Functions
bool	shockwave_renderer_init (ShockwaveRenderer *renderer)
	Initializes shockwave renderer (shader + GPU resources). More...
void	shockwave_renderer_cleanup (ShockwaveRenderer *renderer)
	Releases all GPU resources. More...
void	shockwave_emit (ShockwaveRenderer *renderer, const vec3 position, const vec3 color, float velocity, float sim_time)
	Registers a new shockwave at the given position. More...
void	shockwave_update (ShockwaveRenderer *renderer, float sim_time)
	Removes expired shockwaves based on current simulation time. More...
static void	ensure_grab_texture (ShockwaveRenderer *ren, int width, int height)
void	shockwave_draw (const ShockwaveRenderer *renderer, mat4 view, mat4 proj, vec3 camera_pos, float sim_time, int screen_w, int screen_h)
	Draws all active shockwaves as billboard quads with lensing. More...

Variables
static const float	QUAD_VERTICES []
static const int	QUAD_VERTEX_COUNT = 4
static const int	QUAD_FLOATS = 12

Function Documentation

ensure_grab_texture()

static void ensure_grab_texture ( ShockwaveRenderer *  ren, int  width, int  height  )

static

shockwave_draw()

void shockwave_draw	(	const ShockwaveRenderer *	renderer,
		mat4	view,
		mat4	proj,
		vec3	camera_pos,
		float	sim_time,
		int	screen_w,
		int	screen_h
	)

Draws all active shockwaves as billboard quads with lensing.

Performs a grab pass (copies scene_color_tex to an internal texture) then draws billboard quads that sample the copy and apply radial UV distortion with chromatic aberration.

Should be called after scene geometry, before post-processing.

Parameters

renderer	Renderer state.
view	View matrix.
proj	Projection matrix.
camera_pos	Camera world position.
sim_time	Current simulation time.
screen_w	Viewport width in pixels.
screen_h	Viewport height in pixels.

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shockwave_emit()

void shockwave_emit	(	ShockwaveRenderer *	renderer,
		const vec3	position,
		const vec3	color,
		float	velocity,
		float	sim_time
	)

Registers a new shockwave at the given position.

Oldest event is evicted if the buffer is full.

Parameters

sw	Renderer state.
position	World-space impact point.
color	Body albedo color.
velocity	Radial velocity at impact (determines intensity).
sim_time	Current simulation time.

shockwave_renderer_cleanup()

void shockwave_renderer_cleanup

(

ShockwaveRenderer *

renderer

)

Releases all GPU resources.

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shockwave_renderer_init()

bool shockwave_renderer_init

(

ShockwaveRenderer *

renderer

)

Initializes shockwave renderer (shader + GPU resources).

Returns

true on success, false on shader load failure.

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shockwave_update()

void shockwave_update	(	ShockwaveRenderer *	renderer,
		float	sim_time
	)

Removes expired shockwaves based on current simulation time.

Variable Documentation

QUAD_FLOATS

const int QUAD_FLOATS = 12

static

QUAD_VERTEX_COUNT

const int QUAD_VERTEX_COUNT = 4

static

QUAD_VERTICES

const float QUAD_VERTICES[]

static

Initial value:

= {
    -1.0F, -1.0F, 0.0F, 
    1.0F,  -1.0F, 0.0F, 
    -1.0F, 1.0F,  0.0F, 
    1.0F,  1.0F,  0.0F, 
}